066 connecting rod light bluing

[KZ1000]

Ok! I've got an 066 that was in a parts buy. The bearings feel good and over all the saw should clean up nicely, the connecting rod shows some bluing from when it was roached, but the lower end bearing is tight and doesn't show any heating or damage. My question is how many would use it and how many feel it should be replaced? I for one have no problem with it but would like to hear back from the pros, thanks!

 

[Canadian farm boy]

Any pictures?

 

[KZ1000]

I'll get some in the am, never thought about it, thanks.

 

[Moparmyway]

I’ve got a few 1122’s with blued ends, and I don’t have any problems

 

[KZ1000]

Here are a couple of pictures.

 

[KZ1000]

The bearings (crankcase) and lower bearing have zero play and are smooth in all positions.

 

[angelo c]

case looks very "dry" to me. I would split it and replace the bearings and seals if it were mine. I've had a few bearings that "felt" fine when in the case and real crappy once out. I would re-use the crank after a good visual ( after the split)
best of luck either way.

 

[Fruecrue]

If I was to go through the trouble of splitting cases and replacing bearings, I’d replace the crank as well.
If it felt good, wasn’t too expensive, and is for personal use, I’d run it as is.

 

[Moparmyway]

The bearings (crankcase) and lower bearing have zero play and are smooth in all positions.

I would carefully check crank rotation, slowly, with the rod being held up by a rubber band, or a helping hand.

If its still silky smoothe, and it was my saw ........... I'd run 32:1 and run the saw untill the cows come home, unless milling or stumping, then I'd run 24:1

 

[mdavlee]

Is there scuffing on the bearing cage? If no I'd run it no question

 

[jmester]

I have a few 066/660 with blued rods and rebuild a many of them blued and have not had any problems with them. As long as there is no up and down play in the bearing. I say as others have said already run it.

 

[Al Smith]

You have to remember those crankshaft assemblies were pressed together using an induction heater .Depending on how the induction coils are set up it could easily "run the colors" on the big end of the rod .

 

[KZ1000]

I usually do a cord of wood with a saw before I sell it anyway, if I have any concerns after that I keep it or go back thru it. Thanks for the replies and have a great Turkey day.

 

[KZ1000]

I guess that another good question is a couple of lower fins missing?

 

[huskyboy]

I guess that another good question is a couple of lower fins missing?

My ported 385 has two large top fins gone and it runs fine. Tune it on the safe side for really long cuts.

 

[Mkinslow]

This one was blued also. Don’t really know if it was from the bearing failure or from factory heat induction You can see where the rod bearing started coming out between rob and crank half’s And this was an 066 btw

 

[KZ1000]

Catch 22, I don't like to see a saw look like that, but like the post.

 

[Mkinslow]

Catch 22, I don't like to see a saw look like that, but like the post.

Yeah. Believe it or not this saw still wanted to try and run when the owner would try and start it the day he brought it to me

 

[KZ1000]

Looks like you could get another cord or two out of it.

 

[Mkinslow]

It would have been interesting to try